Specifications

1-35
Cisco ONS 15454 Installation and Operations Guide, R3.2
January 2005
Chapter 1 Hardware Installation
Alarm, Timing, LAN, and Craft Pin Connections
Caution Cross talk may result if both Rx and Tx pins connect on the same twisted pair of wires from the CAT
5 cable. The two Tx pins need to be on one twisted pair, and the two Rx pins need to be on another
twisted pair.
Step 3 A frame ground pin is located beneath each pin field (FG2 for the LAN pin field). Wrap the ground shield
of the LAN interface cable to the frame ground pin.
1.9.4 TL1 Craft Interface Installation
You can use the craft pins on the ONS 15454 backplane or the RS-232 port on the TCC+ faceplate to
create a VT100 emulation window to serve as a TL1 craft interface to the ONS 15454. Use a
straight-through cable to connect to the RS-232 port. Table 1-4 shows the pin assignments for the
CRAFT pin field.
Note You cannot use the craft backplane pins and the RS-232 port on the TCC+ card simultaneously.
Procedure: Install Craft Interface Wires on the Backplane
Step 1 Use #22 or #24 AWG wire.
Step 2 Wrap the craft interface wires on the appropriate wire-wrap pins according to local site practice.
Note For information about attaching ferrites to wire-wrap pin fields, see the “Ferrite Installation”
section on page 1-61.
Step 3 Wrap the ground shield of the craft interface cable to the frame-ground pin.
Step 4 Wrap the ground wire of your computer cable to pin A3 on the craft pin field.
Table 1-4 Craft Interface Pin Assignments
Pin Field Contact Function
Craft A1 Receive
A2 Transmit
A3 Ground
A4 DTR